Ali ibn Hamza asked: Where was he? He was the captive of Ibn Ziad! Imam Reza replied: He came out without his captors noticing and buried his father and then returned. Imam (AS) continued by saying: The God who is capable of taking Imam Sajjad (AS) to Kufa, to bury his father, is able to take Imam (meaning himself) who is neither in prison nor a captive to Baghdad to bury his father (Imam Mosa Kazim (AS)) and then return [4].